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// How it was with Serial:
      
      // *** Receive ***
      
        byteCount = -1;
        byteCount =  Serial.readBytesUntil('\n',buffer,bSize);  
      
        if (byteCount  > 0) {          // Really simple parsing
          strcpy(command,strtok(buffer,","));
      

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## How it was with Serial

        if(not commands.empty()):
            command=commands.get()
            if(args.verbosity>0):
                print("DISPATCHER: sending to Arduino: "+command)
            start=time.time()
            arduino.write(command)

            # wait until we get OK back

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#include <LiquidCrystal.h>

LiquidCrystal lcd(12,11,5,4,3,2);

char commandbuffer[100];

int readserial()
{
  int i=0;

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filehandle=fs.open("commands.txt","w") or error("Cannot open file ", 2)
while true do
  os.sleep(0.1)
  h = redstone.getAnalogInput("front")
  if h>0 then
	  filehandle.writeLine("Down");
  else
	  filehandle.writeLine("Up");
  end
  filehandle.flush();

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tail -f commands.txt >  /dev/cu.usbserial-A702MUZO

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var mqtt = require('sc-mqtt');  
var client = mqtt.client(); // local host is default. Otherwise use host, user/pwd
client.connect();

//Subscribe to changes in the state of the Arduino
client.subscribe('/arduino/1/status');
var player; // To remember who pulled the switch

// Here we tell Minecraft to give us control after certain events
events.on('player.PlayerInteractEvent', function (listener, event) { 

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/251/ { print "LED, 0,", ($2=="UP") ? "0" : "1" }
/250/ { print "LED, 1,", ($2=="UP") ? "0" : "1" }

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//Her gir vi beskjed om å kalle en funksjon når visse hendelser skjer i Minecraft

events.on('player.PlayerInteractEvent', function (listener, event) {
     // Vi må finne ut om det var en "Lever" (altså en spak) som ble trukket i. Nå gjelder det ALLE spaker :-)
     // Du kan hente ut spakens posisjon vha. block.location om du vil se etter en spesiell
     var block = event.getClickedBlock();
     var type = block.getType();
     if(type==org.bukkit.Material.LEVER) { 
          if (block.data==3){
               writeStatus('commands.txt','DOWN');